USB device disconnect while running encodedecode demo

Bob Yiu

Hi,all.I ran encodedecode demo on DM357 today but the USB device disconnected ,the errors are as below, how to solve the problem? Thanks!

root@:/opt/dvsdemo# ./encodedecode
Encodedecode demo started.
usb 1-1: USB disconnect, address 2
usb 1-1.3: USB disconnect, address 3
davinci_interrupt 352: VBUS error workaround (delay coming)

over 16 years ago

0 Bernie Thompson TI over 16 years ago

TI__Mastermind 41665 points

I haven't tried running the encodedecode demo with a USB device connected, but I don't see any reason off hand that it would fail like this. What sort of device do you have connected to the USB? The first thing that comes to mind here is that the voltages are somehow dropping out of spec when you start the encodedecode demo, as that VBUS error likely means that the 5v line on the USB dropped too low, so it may be worth trying to connect your USB device through a self powered USB hub.

0 xiangchao meng over 12 years ago

Prodigy 10 points

Processors

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USB device disconnect while running encodedecode demo